<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"> <style>
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	</style></head><body><pre><span class='line'>  1</span> <span class="COMM">/**
<span class='line'>  2</span>  * @author David Gossow - dgossow@willowgarage.com
<span class='line'>  3</span>  */</span><span class="WHIT">
<span class='line'>  4</span> 
<span class='line'>  5</span> </span><span class="COMM">/**
<span class='line'>  6</span>  * A Arrow is a THREE object that can be used to display an arrow model.
<span class='line'>  7</span>  *
<span class='line'>  8</span>  * @constructor
<span class='line'>  9</span>  * @param options - object with following keys:
<span class='line'> 10</span>  *   * origin (optional) - the origin of the arrow
<span class='line'> 11</span>  *   * direction (optional) - the direction vector of the arrow
<span class='line'> 12</span>  *   * length (optional) - the length of the arrow
<span class='line'> 13</span>  *   * headLength (optional) - the head length of the arrow
<span class='line'> 14</span>  *   * shaftDiameter (optional) - the shaft diameter of the arrow
<span class='line'> 15</span>  *   * headDiameter (optional) - the head diameter of the arrow
<span class='line'> 16</span>  *   * material (optional) - the material to use for this arrow
<span class='line'> 17</span>  */</span><span class="WHIT">
<span class='line'> 18</span> </span><span class="NAME">ROS3D.Arrow</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">options</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 19</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">options</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 20</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">origin</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options.origin</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Vector3</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 21</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">direction</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options.direction</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Vector3</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 22</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">length</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options.length</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 23</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">headLength</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options.headLength</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NUMB">0.2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 24</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">shaftDiameter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options.shaftDiameter</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NUMB">0.05</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 25</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">headDiameter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options.headDiameter</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NUMB">0.1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 26</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">material</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">options.material</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.MeshBasicMaterial</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 27</span> 
<span class='line'> 28</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">shaftLength</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">length</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">headLength</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 29</span> 
<span class='line'> 30</span> </span><span class="WHIT">  </span><span class="COMM">// create and merge geometry</span><span class="WHIT">
<span class='line'> 31</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">geometry</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.CylinderGeometry</span><span class="PUNC">(</span><span class="NAME">shaftDiameter</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">0.5</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">shaftDiameter</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">0.5</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">shaftLength</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 32</span> </span><span class="WHIT">      </span><span class="NUMB">12</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 33</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">m</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Matrix4</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 34</span> </span><span class="WHIT">  </span><span class="NAME">m.setPosition</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Vector3</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">shaftLength</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">0.5</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 35</span> </span><span class="WHIT">  </span><span class="NAME">geometry.applyMatrix</span><span class="PUNC">(</span><span class="NAME">m</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 36</span> 
<span class='line'> 37</span> </span><span class="WHIT">  </span><span class="COMM">// create the head</span><span class="WHIT">
<span class='line'> 38</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">coneGeometry</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.CylinderGeometry</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">headDiameter</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">0.5</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">headLength</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">12</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 39</span> </span><span class="WHIT">  </span><span class="NAME">m.setPosition</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Vector3</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">shaftLength</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">headLength</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">0.5</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 40</span> </span><span class="WHIT">  </span><span class="NAME">coneGeometry.applyMatrix</span><span class="PUNC">(</span><span class="NAME">m</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 41</span> 
<span class='line'> 42</span> </span><span class="WHIT">  </span><span class="COMM">// put the arrow together</span><span class="WHIT">
<span class='line'> 43</span> </span><span class="WHIT">  </span><span class="NAME">THREE.GeometryUtils.merge</span><span class="PUNC">(</span><span class="NAME">geometry</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">coneGeometry</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 44</span> 
<span class='line'> 45</span> </span><span class="WHIT">  </span><span class="NAME">THREE.Mesh.call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">geometry</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">material</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 46</span> 
<span class='line'> 47</span> </span><span class="WHIT">  </span><span class="NAME">this.position</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">origin</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 48</span> </span><span class="WHIT">  </span><span class="NAME">this.setDirection</span><span class="PUNC">(</span><span class="NAME">direction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 49</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 50</span> </span><span class="NAME">ROS3D.Arrow.prototype.__proto__</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">THREE.Mesh.prototype</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 51</span> 
<span class='line'> 52</span> </span><span class="COMM">/**
<span class='line'> 53</span>  * Set the direction of this arrow to that of the given vector.
<span class='line'> 54</span>  * 
<span class='line'> 55</span>  * @param direction - the direction to set this arrow
<span class='line'> 56</span>  */</span><span class="WHIT">
<span class='line'> 57</span> </span><span class="NAME">ROS3D.Arrow.prototype.setDirection</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">direction</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 58</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">axis</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Vector3</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">cross</span><span class="PUNC">(</span><span class="NAME">direction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 59</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">radians</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Math.acos</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Vector3</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">dot</span><span class="PUNC">(</span><span class="NAME">direction.clone</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">normalize</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 60</span> </span><span class="WHIT">  </span><span class="NAME">this.matrix</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">THREE.Matrix4</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">makeRotationAxis</span><span class="PUNC">(</span><span class="NAME">axis.normalize</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">radians</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 61</span> </span><span class="WHIT">  </span><span class="NAME">this.rotation.setEulerFromRotationMatrix</span><span class="PUNC">(</span><span class="NAME">this.matrix</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.eulerOrder</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 62</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 63</span> 
<span class='line'> 64</span> </span><span class="COMM">/**
<span class='line'> 65</span>  * Set this arrow to be the given length.
<span class='line'> 66</span>  * 
<span class='line'> 67</span>  * @param length - the new length of the arrow
<span class='line'> 68</span>  */</span><span class="WHIT">
<span class='line'> 69</span> </span><span class="NAME">ROS3D.Arrow.prototype.setLength</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">length</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 70</span> </span><span class="WHIT">  </span><span class="NAME">this.scale.set</span><span class="PUNC">(</span><span class="NAME">length</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">length</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">length</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 71</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 72</span> 
<span class='line'> 73</span> </span><span class="COMM">/**
<span class='line'> 74</span>  * Set the color of this arrow to the given hex value.
<span class='line'> 75</span>  * 
<span class='line'> 76</span>  * @param hex - the hex value of the color to use
<span class='line'> 77</span>  */</span><span class="WHIT">
<span class='line'> 78</span> </span><span class="NAME">ROS3D.Arrow.prototype.setColor</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">hex</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 79</span> </span><span class="WHIT">  </span><span class="NAME">this.line.material.color.setHex</span><span class="PUNC">(</span><span class="NAME">hex</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 80</span> </span><span class="WHIT">  </span><span class="NAME">this.cone.material.color.setHex</span><span class="PUNC">(</span><span class="NAME">hex</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 81</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 82</span> </span></pre></body></html>